title: Chronic non-A, non-B liver disease. Need for diagnostic criteria and course definition.
mesh_terms: D001706:Biopsy; D002908:Chronic Disease; D006526:Hepatitis C / Q000175:diagnosis* / Q000628:therapy; D006525:Hepatitis, Viral, Human / Q000175:diagnosis*; D006801:Humans; D008099:Liver / Q000473:pathology